| commit | a36593e16757e524c1596d93914155bd8acbb90a | |
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | |
| Thu, 11 Jan 2018 04:08:32 +0000 (11 15:08 +1100) | ||
| committer | David Gibson <david@gibson.dropbear.id.au> | |
| Tue, 16 Jan 2018 22:35:24 +0000 (17 09:35 +1100) | ||
| tree | d2c03b54991a01c7451122d3ab9cd4992132c73b | treesnapshot (tar.gz zip) |
| parent | 8e5dc9ba49743b46d955ec7dacb04e42ae7ada7c | commitdiff |
target/ppc: Yet another fix for KVM-HV HPTE accessors
As stated in the 1ad9f0a464fe commit log, the returned entries are not
a whole PTEG. It was not a problem before 1ad9f0a464fe as it would read
a single record assuming it contains a whole PTEG but now the code tries
reading the entire PTEG and "if ((n - i) < invalid)" produces negative
values which then are converted to size_t for memset() and that throws
seg fault.
This fixes the math.
While here, fix the last @i increment as well.
Fixes: 1ad9f0a464fe "target/ppc: Fix KVM-HV HPTE accessors"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
As stated in the 1ad9f0a464fe commit log, the returned entries are not
a whole PTEG. It was not a problem before 1ad9f0a464fe as it would read
a single record assuming it contains a whole PTEG but now the code tries
reading the entire PTEG and "if ((n - i) < invalid)" produces negative
values which then are converted to size_t for memset() and that throws
seg fault.
This fixes the math.
While here, fix the last @i increment as well.
Fixes: 1ad9f0a464fe "target/ppc: Fix KVM-HV HPTE accessors"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| target/ppc/kvm.c | diffblobblamehistory |